Stave-jointing machine



2 Sheets-Sheet 1.

(No Model.)

0. T. TUERO.

STAYE JOINTING MACHINE.

Patented Jan. 17,1882.

IlIllIIIlIIIII/ll a N, PETERS Phulwblhographor. Washlngiufl, D. C

(No Model.)

2 Sheets-Shet 2. O. T. TUERO.

- STAVE JOINTING MACHINE. No. 252,549. Patented Jan. 17,1882.

Fig.8.

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NITED STATES PATENT Orrrcn.

consran'rmo T. rnnno, or DAUPHINE, MIssoUi-n.

HSTAIVE-QOINTING MACHINE.

SPECIFICATION forming part of Letters Patent'No. 252,549, dated January 1'7, 1882.

' Application filed November 8, 188 1. (No model.)

To all whom it may concern Be it known that I, OONSTANTINO T. Tnnno, of Dauphine, in the county of Osage and State of Missouri, have invented a certain new and useful Improvement in Stave- Jointing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates, first, to the'carriage for clamping the stave blank and carrying it through between the sawsot'the machine; and, secondly, my invention relates to the machine itself.

In the drawings, Figure 1 is a side elevation of the machine and carriage, the latter being in place on the rail or track. Fig. 2 is a side elevation of the carriage and a sectionof same on the line 2 2, same figure. Fig. 3 is afront elevation of the reciprocatingclamping-bar, showing it attached to the compressing-lever, Fig. 4 is a side elevation of the reciprocating bar with part of its lower end broken away to show the shank of the adjustable block. Fig. 5 is a side elevation of one of the clamping-blocks, and Fig. 6 is a rear elevation of same. Fig. 7 is a modification, showing the front end of the beam of the carriage not supported as it is in Fig. 2. Fig. 8 is a front elevation of the machine. Fig. 9 is a section on line 9 9, Fig. 8. Fig. 10 is a top view of the sash-bean1. Fig. 11 is aside view of same, showing the upper ends of the hangers. Fig. 12 is a detail view of part of one of the uprights ofthe frame and part ofthe sashbeam, showing the gearing for separating the tops of the hangers, the gearing-wheels being slightly separated by the sashbeam being slightly raised. Fig. 13 is a detail view of one of the uprights of the frame and one of the sash-beamracksanditsoperating-pinion. Fig. 14 is a bottom view of one of the saw-tables, and Fig. 15 is a top view of same. Fig. 16 is a detail view of part of the under part of the frame, showing the gearing for shitting the saws.

I will first describe the carriage to which the first part of my invention relates.

A is the body of thecarriage,the end pieces, a, of which :give bearing to a right'and-left screw rod or shaft, B, centrally supported by ajournal-box, b, secured to the frame A. On the rod B are screw-threaded blocks b, which work back and forth in a horizontal plane in opening a of the body A. As the rodB hasa right-and-left screw, it will be seen that as itis turned by winch the blocks 1) will either move toward or from each other, according to the direction in which the rod is turned. The blocks 1) have square sockets 0 which receive the square-shaped downward projections b of the removable clamping-blocks b which work back and forth as the rod B is turned on the top of the frame. The stave-blank is secured in place by these sliding blocks, and the purpose of their adjustment is to receive blanks of all lengths. The tops or faces of the clam ping-blocks are provided with flanges b and pits 12 as shown, for taking a good hold of the stave-blank.

O is a beam secured to the tops of the uprights a of the frame A of the carriage. To the top of this beam is pivoted at a one end of a lever, o. i

1) is a vertically-reelprocating clamping-bar, having bearing in the center of the beam 0. The upper end of the clamping-bar is'pivoted to the lever c by links 01. There is a kneejoint between them, as shown. The lower end of the clamping-barhasacentral screw-threaded bore to receive the screw-threaded shank d of the gage-block 01 This gage-block is thus made adjustable to clamp the center of any 1 thickness of stave-blank.

It will be seen that the top of the carriage is made concave. When the stave-blank is put in place between the flanges b of the clamping-blocks 1) its center is forced down by means of the lever and reciprocating oar until it fits the surface of the carriage-top. Thus it will be seen that as the carriage with the staveblan'k thereon passes through between the inclined saws of the machine the stave will be cut to the proper shape to give the bilge to the keg or barrel. The saws being nearer together at top, consequently more material will be cut from both sides of the blank at the ends than at the middle, the taper being gradual, of course, as the ends are higher than the middle. The lever is held down in place by a suitable catch, 0 engaging beneath a projection on the end of the beam.

There should be a spring, between the leverland the beam, so that when the end of the foimer is released it will be elevated and the reciprocating bar will be raised up out of contact with the stave, so that it can be removed. I

The top of the frame of the carriage upon which the stave rests is made in removable sections, for the purpose of making staves of different kinds, and for sawingstraight stuff for headings, &c. As described, with the concave surfaceit is for making common barrel-staves; but on the removal of section No. 1 an inclined surface is presented, which is for use in making tank-staves. By removing section No. 3 a still greater inclined surface is given for making the same class of staves, and by replacing section No. 3 and removing section No. 2 a perfectly straight surface is presented, for the purpose of sawing straight stuff when the saws are made parallel, as hereinafter set forth.

The clamping-blocks b have free vertical movement in the blocks b, so that they will rise and fall as lhey are moved back and forth over the concave or inclined surface, as the case may be, of the frame. The removable sections are mortised to receive the shanks of the clamping-blocks, by which, together with pins, they are held in place.

The bottom of the carriage is grooved to receive the track-rail a of the machine, and the top of the carriage has a rib or tongue, which is received by the grooved guide a of the machine. Thus the carriage will be held from any side movement as it travels back and forth. The lever c terminates in a handle,c, by which the carriage is operated. If the carriage is cast of iron, the beam 0 is not necessarily supported at the front end, as shown in the modification, Fig. 7.

I will now proceed to describe the machine.

The frame of the machine consists of basepiece E and four upright posts, 0.

F is a shaft, having journal-bearing in boxes fff secured to the bottom of the frame E. This shaft is provided with a right-and-lefthand screw-thread, and has at one end a bevelgear wheel, f, which engages with a similar wheel,f on the shat'tf ,which isjournaled to the frame, as shown, and whose outer end has a winch,f, for turning the shafts.

G are the saw-tables, to which the boxes 9 of the saw-shafts are secured. To the bottoms of these tables G are secured boxes 9 which give journal-bearing to the ends of supporting cross-heads 9 through which the right-and-left screw-threaded shaft F passes. (See Fig. 14.) Thus it will be seen that the shaft F supports the saw-tables, and that by turning this shaft to the right or left by means of the winch) the bottoms of the saws will be made to approach or retreat from each other, according to the direction in which the shaft is turned. On the other ends of the shafts g from the saws H are chain-wheels g, for receiving the drivingchainsg. g arechaiuwheelsonshaftsg",wliich have bearin gin boxes 9 supported by brackets g secured to the frame E. The shafts 9" also carry pinions g', which mesh into cog-wheels g on shaft which latter shaft has bearing in suitable boxes supported by cross-beams 9 secured to the posts of the frame. g is a driving-pulley on the shaftg". It will thus be seen that motion will be given to the saws by power being applied to the pulley g.

Insteadofthe chain andchain-wheels,around belt and grooved pulleys may be used.

1 is a sash-beam, guided by end projections, 2', working in grooves i in the two front posts of the frame. To the center of the sash-beam is pivoted by a pin,j, two arms, J, which work in a mortise in the beam. The arms are mortised at j and receive the upper ends of hangers K, which extend down through openings k in the saw-tables, as shown. (Sec Figs. 9, 14, and 15.)

The upper ends of the hangers are provided with flanges above and below the arms, as shown in Fig. 9, to prevent them from moving vertically in the arms. 70 are spiral springs (see Fig. in the mortises of the arms. These springs press the upper ends of the hangers inward. The springs are held in place by rods which pass through the ends of the hangers, and have bearingin the arms. When the tops of the hangers are forced outward, as hereinafter described, for the purpose of making the saws parallel for sawing straight stuff, the springs k are compressed.

The sash-beam can be raised or lowered by means of spur-wheels l on the shaft L,journaled in boxes I secured to the guide-posts, and engaging with racks 1, secured to the rack-supports and extending downward from the ends of the sash-beam in the grooves a" of the guideposts. The sashbeam is held to its adjustment by pawls 1 secured to the guide-posts and engaging with ratchet-wheels l on the shaft L. The shaft is turned by means of winch I.

When it is desired to make the saws parallel for sawing straight stuff, the distance between the tops of the hangers, and consequently the difference between the tops of the saws, is increased by means of a shaft, M, having a rightand-left screw-thread, to which they are secured by similarly screw-threaded clamps m. (See Fig. 11.) The.shaft M has a bevel-gear wheel, m, thereon, engaging with a similar wheehn, on the upper end of the vertical shaft N, which turns in brackets a secured to one of the guide-posts c. On the lower end of the vertical shaft N is another bevel-gear wheel, M, which may be engaged by a similar wheel, a sliding on the shaft f When it is desired to turn the shafts N and M for the purpose stated the sliding wheel on the shaftf is slid to engage with the wheel on the lower end of the shaft N by alever, O, pivoted to the frame E by a pin, 0. The lower end of the lever is bent to engage with a groove of the collar 0 of the wheel n. Thus the wheel a is thrown in and out of gear at will. This wheel is so secured to the shaft that it will turn with it.

I The top guide, a ot' the carriage before mentioned is held in place by means of journalboxes a on the shafts g and L, to which it is secured. (See Fig. 9.) The lower track or rail of the-carriage is secured to the frame E.

P is a scale secured to one of the guide-posts ofthe frame. (See Fig.8.) This scale is graduated, as shown, and the numerals correspond with the largest diameter of the barrel or keg to be made from the staves being cut when the gage is at this point. To illustrate. It will be seen thatwhen the hangers are in their natural inner positions the saws will be closer together at top than at bottom, or inclined toward each other toward .the top, and that as the sashbeam is raised the hangers will earen the sawtables and widen the spaces between the tops ot'thesaws. Now,supposingthelargestdiameter of the keg or barrel to be made from the staves being cut to be eight inches, the pointer 12 on the sash-beam is brought, by raising or lowering the beam as described, opposite the numeral 8 on the scale, which will give the proper bevel and incline sides to the edges'of the stave for a keg of that size, irrespective of thethicknessofthematerial. Now,su-pposing it is desired to make a barrel twelve inches largest diameter, all that is necessary to do is to raise the sash-beam until the pointer comes opposite the numeral 12 on the scale, and the hangers will separate the tops of the saws sufficiently for them to give the proper shape to the staves for a barrel of that size; and so on, the saws may be set to give the proper shape to staves for barrels of any size.

The scale may be of any desired length to correspond with the play of the sash-beam.

As the width of material varies, the saws are changed at b0ttom, as described, to suit such width; but as a matter of course this doesnot affect the gage.

Having thus described myinvention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. The carriage consisting of body A a, rod B, having right and left screwthreads, blocks 1) b beam 0, lever 0, and reciprocating bar D, as set forth.-

2. The lever c and reciprocating bar D, secured to the lever by links (1 d, and provided with block (P, in combination with a carriage, substantially as described.

' 3. The combination ot'saw-tables G G,hangers K K, sliding in the said tables, hinged arms J J, and adjustablesash-heam I, as set forth.

4. The combination, with the hangers K K and hinged tables G G, of the shaft M, having right and left screw-threads, bevel-gear wheels m a, vertical shaft N, bevel-gear wheel n shiftable bevel-gear wheel a", shaftf and lever 0, as set forth.

5. The combination of sash-beam having downwardly-extending racks and adjustable in the grooved front guide-posts, shaft mounted on said posts and provided with spurwheels engaging with said racks and ratchetwheels, pawls engagingwith the ratchet-wheels to lock the shaft and the sash-beam to its adjustment, hinged tables carrying saws, and hangers depending from the sash-beam and sliding in the tables, as set forth.

GONSTANTINO T. TUERO.

Witnesses:

SAML. KNIGHT, GEO. H. KNIGHT. 

